Spectacle frame



Jan. 13, 1931. BECKER 1,788,973

SPECTACLE FRAME Filed March '13, 1928 Patented Jan. 13, 1931 PATENT OFFICE" mum: EDWARD B CKER, or Jamaica, new Yon]: o

' SPECTAQLE r m mi i."

' My invention, while not limited in its application," relates generally to ophthalmic mountings of the type'formed of any of the well-known non-metallic 'materials, such as 5 is now commonly employed in-the trade. I

More specifically,"the invention has particular reference to an improved construction of hinge-joint between the front ends of the temple bars .of a non-metallic spectacle frame and the outer sides of the lens rims of the frame. T

One of the main' objects of the invention is-to provide'a celluloid (or equivalent) to metal bearing for-the hinge joint,which has many advantages over the usual metal to metalbearing. V I

A further objectis to so design'and assemble the hinge joint, that all metal parts employed therein are readily removable, be-v ing heldin position under the pressure of clamp screws and not "permanently molded in or otherwise secured to thenon-metallic frame. 7 r V a a Another feature of the invention, at times important and desirable from the view point of both the manufacturer and user, is to provide a construction which admits of making the hinge joint of the flush type, in which no metal part or parts project beyond the ac non-metallic frame members.

spectacle frame constructed in accordance with my invention;

Fig. 2 is a detail view, on an enlarged scale, of the hinged members 21110116 side of the frame, the temple bar shown being folded down in parallel relation with theframe and the metal parts of the hinge being removed to show the shaped ends of themembers;

carrying my Fi 1 1s a new 1n pe spectlve sho n a mg relatlon Fig. 3 is a detail sectional view of the metal 'parts of the hinge which are shown in separated relation;

Fig. 4 is a cross section, as itwould appear of the complete assembly, if taken on the line s 8 of Fig. 2. i Fig. 5 is a sectional view taken on the line 8", 8 of Fig. 4, with the hinged members in the position shown in Fig. l, and

Fig. 6 is a View in elevation thereof, with a dotted line representation of the temple bar 0 folded down in parallel relation with the frame, theposition it usually occupies when the glasses are not in use. r

Referring to the drawings, 1, 1, indicate the lens rims of a' spectacle frame ofa type that is ordinarily formedof celluloid,

zylomite or other suitable non-metallic material. The'lens' rims are each provided with an integral, outwardly extending lug2, to which the front ends of the temple bars 3, 3, are attached by means of'hinge joints 4, 4.

It is desirable,for many-reasons, that'the hinge joints be so constructed as to definitely limit movement of the temple bars to 90 degrees, so that they stand at right angles to I the frame when the glasses are in useand folddownward flat across the frame, in close relation thereto, when the glasses; are not muse. 1

- This is accomplished by giving the adjoining ends-of the lugs 2, andtemple bars 3, a 45 degree'bevel, as indicated at 5, and so designing the hinge joint that the turning center 6, thereof, is located at the upper meeting ends of the bevelled extremities of the above mentioned members. V

The hinge pintle is formed by a through sleeve 7, to the exterior surface of which the lug Qand bar 3, are shaped and fitted in bear- The above describedmembers are secured in assembledrelation-by terminal washers 8, 8, and screws9, ,9, which latter are threaded in'opposite ends. of the pintle sleeve 7 and are provided, preferably, with conical heads .whiclrseat in similarly shaped openings in the washers.

As best shown in Figs.- 3 and 4, the washers a recup-shaped -that is to-say, provided -with annular peripheralflanges-10,which enter grooves 11, formed in opposite sides of the lugs 2 and bars 3. The curve of the grooves 11 is concentric with the turning axis of the hinge, permitting free movement of the temple bars on the hinge pintles as bearings. Tension on the joint may be varied and regulated as desired by tightening or loosening the screws 9,. 9, as will be apparent. Y

From the drawings it will be seenthat the hinge constructed as above described, forms practically a flush-joint andcan'be entirely freed of the slightly pro ecting screws and washers, if desired, by completely counter sinking them in the sides. of ,the lugs and bars, without otherwise modifying either the as sembly oroperation of the hinge joint described. v 1 7 Asthe many obvious advantages of a celluloi i tometal or a non-metal to metalbearing will be apparent, it will not benecessary to enumerate them. l v

I do not wish to be understood as intend ing to limit myself tothe exact construction and arrangement herein shown and de scribed, as various changes may be made therein witheut departing from thespirit and scope of the invention, as set forth in-the ap pended clanms. In this' connection, I may mention that I have not considered it necessary to extend the disclosure herein tomod ifieations that are: at onceyapparent-and obvious, such, for. example, as combining in one piece, parts that I have shown, for conven: ienceof illustration, as separate pieces, since the function performed and result attained would bethe'same whether certain parts are integrally or separately formed.

In the following claims,ll shall refer for convenience of briefly identifying the lens rimsand temple bars of the spectacle frame, as frame members.v i .v

Havingthus described; my invention, what I-claimis: I J t r 1. In a non-metallic spectacle frame, a hinge; joint, including a pintle providing a turning axis for relative movement of the frame members, the said frame members each having abea-ring on the pintle extending substantially throughout the length of the pintle but individually embracing lessithan 180 degrees of its peripheral surface.

2.111 a nonmetallio spectacle frame, a-

hinge j oint,-including a pintleproviding a turning axis for relative movement of the frame members, the said frame members each having a bearing on thepintle extendturning axis for relativezmovementof the frame members, the said frame members each having a bearing on the pintle extending substantially throughout the length of the pintle but individually embracing less than 180 degrees of its peripheral surface, the extremities of the said; frame. members being -oppositely bevelled .tolirnit the movement thereofto approximately 90 degrees, and means for s'ecuringthe frame mmebers and hinge pin-tlei n operati ve 7 assembled relation.

7 4, In a non-metallic spectacle frame, a

hinge joint including a pintle providing a turning axisforrelative movement of the frame members," the said frame members-each having a bearing' onzthe:pintleextending substantially throughoutthe length-of the pintlebut individually embracing lessthan 180 degreesof its peripheral surface, the extremities, of saidframe;members being shaped to co-act in definitely limiting the movement thereof, and means securing thefra-me members and hinge pintle in operative assembled relatiom I a f s *5. In. a nonmetallic spectacle frame, a hinge joint including a 'pintle providing a turning axis for relative movement of the frame members, the sa d; frame members each having a'bearing on the .pintle extending substantially throughout the length io f the pin; tle but individually embracing less than 1.80 degrees of its peripheral surface,lthe extremities of said frame members extending bes yond the pintle-and-shapedto co actin definitely limiting; the movement thereof, and means securing the frame; members and hinge pintle in operative assembledrelation.

I affix my signature.

a rR-ANK; EDWARD Brenna."

ing-"substantially throughout the length of I the pintle'but individually embracing less than 180 degrees of its peri heral surface,

theextermities of the said frame members beingsoppositely bevelled to limit relative;

movement thereof to approximately 90' degrees. V- 3; In a non-metallic spectacle frame, a

hinge joint including a pintleproviding a 1 

